How To Fix TN_PROCESS149 - Stack XML contains only add-on uninstallations for this system

SAP Error Message - Details

• Message type: E = Error

• Message class: TN_PROCESS - Message Class for OCS Change Processes

• Message number: 149

• Message text: Stack XML contains only add-on uninstallations for this system

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message TN_PROCESS149 - Stack XML contains only add-on uninstallations for this system ?

  The SAP error message "TN_PROCESS149 Stack XML contains only add-on uninstallations for this system" typically occurs during the process of applying a support package or an upgrade in the SAP system. This error indicates that the stack XML file being processed contains only uninstallations of add-ons, which is not a valid operation for the current system context.
  Cause:
  
  Stack XML Configuration: The stack XML file may have been incorrectly generated or configured, leading to a situation where it only includes uninstallations of add-ons rather than the necessary installations or updates.
  System State: The system may be in a state where it cannot process the uninstallations due to dependencies or other issues.
  Incorrect Stack File: The stack file may not be appropriate for the current system version or configuration.
  
  Solution:
  
  
  Check Stack XML File: Review the stack XML file to ensure it contains the correct entries for installations or updates, not just uninstallations. You may need to regenerate the stack XML file using the Software Update Manager (SUM) or the Maintenance Planner.
  
  
  Use Maintenance Planner: If you are using the Maintenance Planner, ensure that you have selected the correct components and that the stack XML reflects the intended changes for your system.
  
  
  Validate System Configuration: Ensure that the system is in a valid state for the operations you are trying to perform. Check for any existing issues or inconsistencies in the system that may prevent the processing of the stack.
  
  
  Consult SAP Notes: Look for relevant SAP Notes that may address this specific error. SAP frequently updates its knowledge base with solutions for common issues encountered during upgrades and installations.
  
  
  Contact SAP Support: If the issue persists after checking the stack XML and validating the system state, consider reaching out to SAP Support for further assistance. They can provide guidance based on the specific context of your system.
  
  
  Related Information:
  
  SAP Notes: Search for SAP Notes related to TN_PROCESS149 or stack XML issues in the SAP Support Portal.
  Documentation: Review the official SAP documentation for the Software Update Manager (SUM) and the Maintenance Planner for best practices on generating and using stack XML files.
  System Logs: Check the system logs (transaction SM21) for any additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to resolve the error and proceed with your upgrade or support package application.